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Finding the Fourth Proportional to 14,003.61, 20,998.14 and 6,606.09

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Solution

The fourth proportional to 14,003.61, 20,998.14 and 6,606.09 is: 9,905.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,003.61 : 20,998.14 = 6,606.09 : x
  2. Step 2: Convert to fraction form
    14,003.61/20,998.14 = 6,606.09/x
  3. Step 3: Cross multiply
    14,003.61x = 20,998.14 × 6,606.09
  4. Step 4: Simplify right side
    14,003.61x = 138,715,602.67
  5. Step 5: Solve for x
    x = 138,715,602.67/14,003.61
  6. Step 6: Final answer
    x = 9,905.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.